what are the advantages and disadvantages of a larger sight window? bigger than 3"s. or is it just personal preference?

The sight window on my Black Widow SAIII and DAS Master Series is perfect. If the sight windows were any smaller they wouldn't allow me to see my target at close distances unless I increased the cant of my bow.

For most of my shots...the sight window acts as a partial frame for me to reference when I aim.

Ray